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Trac macros are plugins to extend the Trac engine with custom 'functions' written in Python. They allow insertion of custom dynamic HTML data in any module supporting WikiFormatting.

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Trac macros are plugins to extend the Trac engine with custom 'functions' written in Python. A macro inserts dynamic HTML data in any context supporting WikiFormatting.

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Another kind of macros are WikiProcessors. They typically deal with alternate markup formats and representation of larger blocks of information (like source code highlighting). See also: WikiProcessors.